title: Design of a dielectric applicator for microwave heating.
abstract: In this paper the design of a handheld light applicator for microwave heating is presented. The applicator is made of an array of resonant longitudinal slots cut on a broad wall of a rectangular waveguide, and it is covered by a cylindrical lens made of Plexiglas with a permittivity of 2.53. The geometrical optics approach is used as initial approximation to establish the lens profile. It allows for the shaping of the slotted waveguide's radiation pattern into a desired output pattern in the transversal plane. Three-dimensional simulation results show that the applicator performance can be improved at 2.45 GHz by using a homogeneous dielectric lens.
authors.affiliation: Politecnico di Bari Via Orabona 4 - 70125 Bari, Italy. gallo@deemail.poliba.it
authors.forename: Michele
authors.initials: M
authors.lastname: Gallo
authors.forename: Michele
authors.initials: M
authors.lastname: Bozzetti
authors.forename: Giovanna
authors.initials: G
authors.lastname: Calò
authors.forename: Luciano
authors.initials: L
authors.lastname: Mescia
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Petruzzelli